be/bo.ml

   1 let w8 s pos i = String.set s pos (Char.chr (i land 0xff));;
   2 let r8 s pos = Char.code (String.get s pos);;
   3
   4 let ordermagic = 'B';;
   5
   6 let w16 s pos i =
   7   w8 s pos (i lsr 8);
   8   w8 s (pos+1) i
   9 ;;
  10
  11 let w32 s pos i =
  12   w16 s pos (i lsr 16);
  13   w16 s (pos+2) i
  14 ;;
  15
  16 let r16 s pos =
  17   let rb pos1 = Char.code (String.get s (pos + pos1)) in
  18   (rb 1) lor ((rb 0) lsl 8)
  19 ;;
  20
  21 let r16s s pos =
  22   let i = r16 s pos in
  23   i - ((i land 0x8000) lsl 1)
  24 ;;
  25
  26 let r32 s pos =
  27   let u = r16 s pos in
  28   let l = r16 s (pos+2) in
  29   (u lsl 16) lor l
  30 ;;